package oocl.ita.eordering.filter;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import oocl.ita.eordering.po.Client;

/**
 * Servlet Filter implementation class LoginFilter
 */
public class LoginFilter implements Filter {

	/**
	 * Default constructor.
	 */
	public LoginFilter() {
		// TODO Auto-generated constructor stub
	}

	/**
	 * @see Filter#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
	}

	/**
	 * @see Filter#doFilter(ServletRequest, ServletResponse, FilterChain)
	 */
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
			throws IOException, ServletException {
		Client client = (Client) ((HttpServletRequest) request).getSession().getAttribute("c");
		System.out.println("filter test client:" + client);
		if (client == null) {
			response.setCharacterEncoding("utf-8");
			PrintWriter writer = response.getWriter();
			writer.print("Please login first!");
		} else
			chain.doFilter(request, response);
	}

	/**
	 * @see Filter#init(FilterConfig)
	 */
	public void init(FilterConfig fConfig) throws ServletException {
		// TODO Auto-generated method stub
	}

}
